A lot of people ask whether the app works without a signal. The answer is yes, but it is worth explaining what that means in practice because it is not a single toggle -- it is three separate things.
First: any spots you have already viewed are cached on your device. If the network drops while you are driving, the map keeps showing spots for wherever you have already been looking. An honest banner tells you how many saved spots are in the current view. No pretending things are live when they are not.
Second: if you check in -- or log a fuel price -- with no signal, it saves on your device (photos included) and uploads automatically when you reconnect. The GPS coordinates are captured at the spot so the server proximity check passes when it syncs later.
Third: you can pre-download a whole state before you go off-grid. Under Profile you will find Offline, and under Spot Data there is an A-to-Z state picker with spot counts shown before you download. Up to three full states at a time, per-state delete to swap. Dense metro areas download completely -- no silent truncation at 5,000 spots like some other apps do.
There is also a Map Tiles section where you can save the Outdoor base map for a 25, 50, or 100 mile radius around your current map position. Partial downloads auto-resume if the app gets killed mid-download.
If you want to manage storage, the Offline screen shows a breakdown of downloaded states vs spots cached from browsing, with a one-tap clear for the browse cache that never touches your downloaded states.
Where are you heading that has you most worried about coverage?
